On the solution of differential equations with delayed and advanced arguments. Iakovleva, Valentina; Vanegas, Carmen Judith — 2005 Electronic Journal of Differential Equations (EJDE) [electronic only]
Solution of a spectral problem for the curl operator on a cylinder. Saks, Romen; Vanegas, Carmen Judith — 2005 Electronic Journal of Differential Equations (EJDE) [electronic only]